2025 Specialized Sirrus 4.0 – Fitness Bike
Specifications
|
Specification |
Details |
|
Model |
Sirrus 4.0 |
|
Vehicle Category |
Fitness Bike |
|
Application |
Commuting, fitness, exploration |
|
Starting Price (2025) |
$999.99–$1,599.99 USD |
|
Color Options |
Satin Black / Smoke / Black Reflective |
|
Sizes |
XXS, XS, S, M, L, XL |
Frame & Drivetrain
|
Specification |
Details |
|
Frame |
Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts |
|
Fork |
Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5 |
|
Drivetrain Compatibility |
MicroSHIFT, 10-speed |
|
Dropouts |
12x100mm thru-axle (F), 12x142mm thru-axle (R) |
|
Crank |
Praxis Alba M24, solid forged arms, 6061 outer ring, steel inner ring, 110 BCD, 10-speed |
|
Chain |
KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™ |
|
Rear Derailleur |
MicroSHIFT RD-R55S, short cage |
|
Front Derailleur |
MicroSHIFT FD-R522, Band-clamp |
|
Shifters |
MicroSHIFT, 10-speed |
|
Cassette |
Sunrace CSRS0, 10-speed, 11-28t |
Components & Features
|
Specification |
Details |
|
Seating |
Body Geometry Power Sport, steel rails |
|
Cargo Capacity |
Plug + Play rack/fender mounts, low rider mounts |
|
Wheels/Tyres |
Front: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h, RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c; Rear: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h, RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c |
|
Brakes |
Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm (F), 140mm (R) |
|
Brake Levers |
Tektro HD-R280 |
|
Handlebar |
Double-butted alloy, 9-degree backsweep, 31.8mm |
|
Stem |
Future Stem, Comp |
|
Saddle |
Body Geometry Power Sport, steel rails |
|
Seatpost |
Alloy, 2-bolt, 14mm offset, 27.2mm |
|
Seatpost Clamp |
Bolt-type, 31.8mm |
|
Grips |
Specialized Body Geometry Contour, lock-on |
|
Front Hub |
Alloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 28h |
|
Rear Hub |
Alloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h |
|
Rims |
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h |
|
Spokes |
Stainless, 14g |
|
Pedals |
Specialized Body Geometry Fitness, platform, plastic |
|
Exterior Features |
Plug + Play rack/fender mounts, low rider mounts, Future Shock 1.5 |